Re-doing plaster walls
The house is a 1903 Queen Anne in northern Idaho. Original walls are plaster over wood lath.
We had some roof leak sabove our landing (a shake roof was poorly installed), and they clearly weren’t the first ones. By the time I finished stripping old layers of kraft paper and whatnot, I’m down to the plaster. When I’m done, I will have used adhesives to reattach all of the plaster back to the lath.
I’ve attached pictures. I have both holes to fill from re-attaching the plaster, and holes that electricians left at some point in time. My plan is to fill the holes, clean the chalking off of the old plaster, use some Zinsser GARDZ to give a surface with some tooth, put up Adfors Super Crack Stop, and then do a finish coat of mud or plaster.
Any recommendations as to what to use to patch the holes, small and large? Thoughts about my process?
Using scrap Sheetrock, I would over cut the pc by an inch more than the hole. Flip it over to the backside and score the paper along each edge (the size of the hole) so when you snap those scores it cracks and you can pull the gypsum off the face paper.
This gives you a “tape” paper to bridge the gap as well as the fill for the gap.
Use a Sheetrock thickness that conforms to the depth of the plaster (not including the lath.
Ok, so most people don’t have random scraps laying round . Backfill with quick dry Durabond, imbed paper tape all around the patch. Couple more hits with quick Easysand and you’re done.
I use Plasterweld if there’s adhesion questions. Another if you have it, Concrete glue or watered down white Elmers.